View Single Post
Old 05-26-2012, 06:22 PM   #4
dwig
Wizard
dwig ought to be getting tired of karma fortunes by now.dwig ought to be getting tired of karma fortunes by now.dwig ought to be getting tired of karma fortunes by now.dwig ought to be getting tired of karma fortunes by now.dwig ought to be getting tired of karma fortunes by now.dwig ought to be getting tired of karma fortunes by now.dwig ought to be getting tired of karma fortunes by now.dwig ought to be getting tired of karma fortunes by now.dwig ought to be getting tired of karma fortunes by now.dwig ought to be getting tired of karma fortunes by now.dwig ought to be getting tired of karma fortunes by now.
 
dwig's Avatar
 
Posts: 1,613
Karma: 6718479
Join Date: Dec 2004
Location: Paradise (Key West, FL)
Device: Current:Surface Go & Kindle 3 - Retired: DellV8p, Clie UX50, ...
Quote:
Originally Posted by John May View Post
... remove a battery and put it in voltmetr, it shows 4,2V, so I think battery is ok. ...
Faulty logic!

Even a nearly dead battery will yield nearly its full voltage when there is no load. I modern voltmeter places almost no load on the circuit it's testing. The better the meter the less the load. Even under load the battery used by the Kindle will produce nearly full voltage up until very near the end of its charge.

Testing with a volt meter is all but useless. It can't determine if a battery is failing or not.

The symptoms you list are the result of either a failing battery or a faulty charger/cable. If the Kindle with charge "completely" (green charge light) then the charger is OK and short runtime indicates a bad battery. Also, not being able to achieve a full charge may still be the fault of the battery.

Take HarryT's advice and contact Amazon.
dwig is offline   Reply With Quote